Electric gas-lighting device.



B.. A. J EWBTT. ELECTRIC GAS LIGHTING'DEX/'10blv APPLICATION FILED JULYS, 1907.

Patented Sept. 20, 1910.

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D s'rii'rns 'PATENT onirica.'

'ROBERT A. JEWETT, 0F WORCESTER, MASSACHUSETTS.

ELECTRIC GAS-LIGHTING DEVICE.

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Specicationio'f Letters Patent. Patented Sept. 20, 1910.

Application filed July 3, 1907. Serial No. `381,982.

although the invention may be used equally p as well with other types of burners.

lt has tor its object the production of a device which may be operated by the turning of the valve which controls the main gas supply and which'is adapted in its movement to ignite the gas passing from said burner.

It has for a further object the production of a device adapted to emit a limited amount of gas through a by-pass bythe operation of the main valve and ignite the gas thus emitted to provide a suitable jet to light the gas passing from said burner.

The invention consists in certain novel `features of construction and arrangement of parts which will be readily understood by and to the claims hereinafter given.

Of the drawings: Figure 1 represents a 'section-through an incandescent gas burner showing the invention applied thereto. Fig. 2 represents a section of the valve of said burner drawn to an enlarged scale. Fig, 3 represents a section through said valve and casing, the cutting plane being on line 3-3 on Fig. 2 showingthe by-pass in said valve in position to admit gas thereto. Fig. 4 represents a section' on line 4-4 showing the valve in the same position as in Fig. .3. Fig. 5 represents a similar section to Fig. 3

showing the valve in closed position. Fig.

6 represents a similar section to Fig. 4,l showing the valve in closed position. Fig. 7 represents a similar section to Fig. 6 showing the valve in open position. Fig. 8 represents a similar section to Figs. 3 and 5 showing the valve inthe same position as in Fig. 7, and Fig. 9 represents an elevation of the .wipers for creating an electric spark for the purpose of lightingthe gas.

Similar characters designate like parts throughout the several igures of the draw.- ings.

In the drawings, 10 represents an ordinary burner supplied with an incandescent mantle 11 of any well-known construction and surrounded by the usual glass globe 12 which is provided in its walls with a plurality of openings 13 for the admission of air to the interior of the globe.

'The burner-casing 10 is provided with a l valve 14, the passage 15 through which Vcommunicates with the passage 16 when in open position and controls the flow of gas through said passage by a movement of the valve 14 about its axis. The outer end of the passage 16 communicates with the pipe 17 lead# ing to the main gas supply. In addition to the main passage 1G the casing 10 is also provided at its outer end with a small inlet l 18 which communicates with a radial hole 19 extending lto the centerof the valve 14 and communicating, with the interior of the tubular member 20 secured to the valve 14 in axial line therewith.

The upper 'end of the tube 20 is bent over as indicated at 21 so that the mouth thereof is at one of the openings 13 in the globe 12 and points directly at the mantle 11. The extreme outer end of the tube 2O is provided with a suitable wiper 22 which co-acts with a companion wiper 23 secured by means of a clip 24 to the globe 12 in'such a manner that said wiper will extend across the opening 13. An electric wire 25 leads from said wiper 23 around the burner casing 10 to a suitable battery 26 from which a return wire communicates with the burner casing to coinplete an -electric circuit. This circuit is normally broken when the valve 14 is closed, the wipers 22 and 23 being separated in this position. When, however, the valve'or cock 14 is turned to permit gas to iow through the burner 10 the wiper 22 will be moved about the axis of the valve 14 and wipe across the pendent wiper 23 and complete Aerated, which is adapted to ignite any gas which may be emitted at this time through the tube 20. j

As will be seen by Figs. 5 and 6, when the stop 27 'is against the shoulder 28 in the casing 10 the assage 15 through the valve will be out of line with thepassages 16 in the casing thus preventing the `flow of gas to the burner while at the same time the radial hole 19 is also out ot alinement with' the small passage 18 extending through said casing thus prevnting the flow of any gas y /ever, as the thumb-piece 29 is moved about the axis of said valve 14 in the direction of passage to the main gas supply; a valve located at one side of and pai'- allel to said burner adapted to control the I the arrow on Figs. 3 to6 inclusive, the radial 1 flow of gas through said passage and procpening or hole 19 in the brought into alinement with thus permitting the gas from pass to and through the tube 20 and out of the mouth thereof at its bent end 21.

Only a limited amount of gas is passed into and through the tube 20 as the continuation of the movement of the valve 14 in the direction of the arrows on Figs. 3 to 6 inclusive causes the radial opening 19 to pass by the passage 18 and thus shut oi' the iiow of gas through the tube. This movement, however, of the valve 14 in the direction of the passage 18 the pipe 17 to v the arrow causes the wipers 22 and 23 to 20 to occur when the operate vto cause a spark which willl be timed tube 20 has been filled with gas, this spark lighting the gas in said tube and causing a iame to be emitted from the mouth thereof extending to the mantle 11 which at this time is being supplied with 25 gas through the main passage 16, the valve 14 having been turned sufficiently to cause the passages 15 and 16 to have become alined thus permitting the lowof gas from the main supply to the burner.` The advantage oi a device oi this kind which will siinultaneously cause the gas from the main supply to pass through and from the burner and ignite said gas thus emitted from the burner is obvious.

This makes a very simple construction of a lighting device -particularly adapted for incandescent gas lamps whichl is very efective in its operation while the number of parts necessary to secure the desired result is reduced to aminimum.

claim:

'two radial holes in its casing between the valve plug and the main gas supply; a bypass communicating with one o said holes through said valve adapted to permit the passage of a limited supply of gas therethrough during the movement of said valve; a tubular extension outside the limits of said burner communicating with said bypass and terminating in a radial portion adapted to emit the gas in the direction of said burner; an ignition device at the mout h thereof; and means for operating said ignition device by the movement of saidvalve.

2. The combination of a gas burner nro- It is believed that the many advantages and operation of this device will be fully apparent without further description.

Having thus .described my invention, I

1. The combination of a gas burner provided with -a passage to the main gas supply; a valve located at one side of and parallel to said burner adapted to control the. flow of gas through said passage and having valve will be l vided with means for admitting a portion of the gas supply to the center or said valve; a tube secured to said valve in axial line therewith communicating with said passage; a clip seeureil to the globe of said buiner provided with a wiper linger; a wire secured to said clip adapted to conduct an electric current to said wiper linger; and' a co-acting wiper iinger secured to said tube.

3. The combination of a gas burner provided with a passage to the main gas supply; a valve located at one side of and parallel to said burner adapted to control the flow of gas through said passage; a wiper linger secured to the globe of said burner; an axial 'extension to said valve revoluble therewith; and a wiper finger secured thereto adapted when the valve is operated to turn on the gas to coact with the burner wiper finger to ignite the gas passing from said burner.

xl. The combination of a gas burner provided with a horizontal passage to the main gas supply; a valve located with its axis transverse to lsaid passage and adapted to control the liow of gas through said pas-v sage; a globe to said burner provided with a plurality of air inlets; a wiper linger secured to said globe at one ot' said inlets; a tubular member secured revoluble therewith; means for admitting a limited supply of gas to saidtubular mem'- ber during the rotation of said valve; and a wiper finger at the outlet to said tubular member adapted during the rotation of said valve to coact with the wiper finger aiiixed to the globe to cause an ignition of the gas passin from said tubular member.

5. e combination of a gas burner provided with a passage to the main gas supply; a valve located at one side of and parallel to said burner ada ted to control the flow of gas throu h sai passage and provided with means or admitting a portion of thevas supply to the center of said valve; a turbe se to said valve and Acured to said valve in axial line v therewith communicating with said passage; a clip detachably secured to a xed member outside the limits of the burner and provided with a wiper finger; a wire secured to said clip adapted to conduct an electric current to said wiper finger; and a co-acting wiper linger secured to said tube.

Signed by nie at Boston, Mass., this 29th day of June, 1907.

ROBERT A. JEWETT.

Witnesses:

WALTER E. LOMBARD, EDNA C. CLEVELAND. 

